Broken-pick extractor for looms



C. CROMPTON. BROKEN PICK EXTRACTOR FOH LOOMS.

APPLICATION FRED DULY I6, 1918. I 1,319,759. Patented Oct. 28,1919.

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UNITED sTArps TENT OFFICE.

CHARLES CROMPTON, OF wORCESTER, MASSACHUSETTS.

BROKEN-PICK EXTRACTOIR, FOR LOOMS.

Specification of Letters Patent.

Continuation of application Serial No. 108,197, filed July 8, 1918. Thisapplication filed *Jnly 16, 1918.

Serial No. 245,202. 1

To all whom it may com-em:

Be it known that 1, CHARLES CROMPTQN, a citizen of the'United States,and a resident of \Vorccster, in the county of Worcester and State ofMassachusetts, have invented an Improvement in Broken-Pick Extractorsfor Looms, of which the following description, in connection with theaccompanying drawings, is a specification, like characters on thedrawings representing like arts. P This application is a continuation ofmy co-pending application Serial No. 108,197, filed July 8, 1916.

This invention relates to looms for weaving fabrics and the like andparticularly to means for extracting a broken partial or incomplete pickfrom the shed of the warp in looms of the above character.

The object of my present invention is the provision of means arranged toenter the open shed of the warp, and after the filling pick has beenpassed through said shed, should said pick become broken or beincomplete through exhaustion to remove said1 broken or incomplete pickfrom said she With this and other objects in view my invention consistsin a novel combination and arrangement of parts hereinafter describedand more specifically pointed out in the appended claims.

In the accompanying drawings I have shown my invention combined with aortion of a 100m sufficient to enable t ose skilled in the art' tounderstand the construction and operation thereof.

Referring to the drawings:

Figure 1 is a transverse section of a portion of a loom embodyingmimprovements;

Fig. 2 is a plan view of Fig. 1, in this view the loom frame and some ofthe parts are omitted;

Fig. 3 is a detail front view of my improved broken pick extractor;

Fi 4 is, on an enlarged scale, a sectional detai of the upper portion ofthe extracting members;

Fig. 5 is a view correspondin to Fig. 4, but shows the plunger in a dierent position;

Fig. 6 is a view similar to the upper art of Fig. 3 but representing thetubes as aving their openings or slots directed downward; and

- contained therein.

17 are the warp threads and 18 is the woven fabric.

The above described parts are or may be of the usual and well knowntype.

I will now describe my improved pick extracting device as combined withthe above mentioned parts.

In this instance I have provided a vertical member 19, the upper end 19of which has slidably mounted therein a plunger 20, said plunger 20having an opening 21 which extends upwardly from the lower end of saidplunger 20 and connects with an opening 22 which extends from saidopening 21 to the periphery of said plunger 20.

The upper portion 19 of the member 19 has a tapering projection 19' towhich is secured, in this instance, a tube 23, the longitudinal wall ofwhich has a horizontal opening 24 therein. Said tube 23 has a drivingfit upon its projection'19 and can be turned or adjusted b a wrench orotherwise so as to direct t e slot or opening 24 in an directionthroughout 360. If desired both tubes 23 may be positioned with theirslots 24 directed downward, thereby very effectively to insure thesucking in of both parts of a broken pick, one at each end of the lay.If at each end of the lay the slots 24 be directed toward the fell ofthe cloth, I insure the sucking in of the Patented Oct. 28, 1919.

adjustment, as

to a stand 27 secured to the floor, said stand 27 having a horizontallyextending arm 28 to which is pivotally connecterh'one end of aconnecting rod 29, the opposite end of said connecting rod 29 beingpivotally connected to a collar 30 secured to the lower portion of theplunger 20.

Secured to the lower end of the plunger 20 is one end of a flexible tube31, the opposite end of said tube 31 being secured to a vacuum tank (notshown) which may be of any suitable and well known construction.

I have only describedone of the devices as the opposite device is oflike construction, the two devices being retained in their inneroperative positions by means of a spring 32 extending between the twodevices.

I will now briefly describe the operation of the above mentioned parts.

If the filling 16 should become broken while being passed through theopen shed of the warp 17, see Fig. 2, the tube 23 being inserted in itsoperative position, and the plunger 20 being in its upper position withthe opening 22 cooperating wit the openin 25, thus causing a vacuum tobe produced in the tube 23, the broken end of the filling will becarried through the t be 23 and thus through the o enings 25 and 22 intothe opening 21 in t e plunger 20 before the forward beat of the lay.

On the forward beat of the lay the cams 33 secured to the lay beam 14,will engage the members 19, causing said members to be moved outwardlyas shown by broken lines Fig. 3.

As the members 19 are moved outwardly the plunger 20, through theconnectors 29.

will be caused to move downwardl", thus closing the openings 22 and 25,see ig. 4.

.As the plunger 20 is carried downwardly the filling end will be severedby the edges of the openings 22 and 25.

I have shown the filling fork mechanism mounted on the breast beam, butif desired the filling fork mechanism may be mounted on and operated bythe lay in any of the usual and well known ways.

In Fig. 6', I have represented the tubes '23 as having their slots 24turned downwardly. The said slots may in any event be of any desiredwidth.

In Fig. 7, I have represented one of the tubes 24 as secured with adriving fit upon the nipple or projection 19 and have represente a setscrew 23 constituting additional means for securing the tube upon saidnipple or projection and received in a transverse slot 23" in said tube.The tubes 23 are held, because of the driving fit, securely upon theprojections 19 against all liability of falling off under the impact ofthe lay. and yet with capacity for rotative by the application of a hand24, it may not be necessary or worth while to suck in the end of thebroken pick which is at that side of the loom occupied by the shuttlejust after laying the broken pick; that is, at the left hand side of theloom, viewin Fig. 2.

It will readily be seen and appreciated by those skilled in the art thatI have provided a simple and efficient device for removing a broken pickfrom the open shed otthe warp without the necessity loom. The uprightsor members 19 are in practice preferably made of tempered steel, andthis fact, together with the joints or pivotal points 26 gives amplespringing facilities when the lay hits the tubes 23 after the latter arewithdrawn from the ends of the shed by the cams 33. Thus in practice thelay serves properly to beat up the filling at the fell of the cloth andthe tubes 23 with their supports yield suliiciently for this purpose.

Having .thus described my invention, it will be evident that manychanges and modifications may be made therein by those skilled in theart without departing from the spirit and scope thereof, therefore I donot wish to be limited to the specific details herein disclosed, butwhat I claim is:

Claims:

1. A loom having a shuttle, picking means to lay the filling of saidshuttle in the shed of the loom, and means to withdraw from the shedlaterally of the loom before heatup, that end of a broken or incompletepick which lies at gthe side of the loom from which such ick was laid.

2. A loom having a shuttle, picking means to lay the filling of saidshuttle in the shed of the loom, and means to withdraw, intact from theshed before beat-up, that end of a broken or incomplete pick which liesat the side of the loom from which such pick was laid.

3. Aloom having a shuttle, pickin to lay the filling of said shuttle int e shed of the loom, and means to withdraw, intact from an end of theshed before beat-up, that end of a broken or incomplete pick which liesat the side of the loom from which such pick was laid.

4. A loom havin a shuttle, picking means to lay the filling 0 saidshuttle in the shed of the loom, and means to enter the end of the shedbefore beat up and to withdraw means of stopping the la inthe P y thatend of a broken or incomplete pick which lies at the side of the loomfrom which such piek was laid.

A loom having a shuttle. )ickinomeans to lay the'filling of said shlltte in the shed, and means to withdraw from the shed before beat-up thetwo ends of the broken piek each intaet.

6. A loom having a shuttle. )ieking means to lay the fillin, of .-:\l(lshutt e in the shed, and witlnh'awin means adapteerto enter the, end ofthe shed before beat-up and to withdraw therefrom the two ends of thebroken pick.

7. A loom having a shuttle. )icking; means to lay the fillina of saidshn tt e in the shed, and broken pick withdrawing means, and meanstooperate the same before beat-up of thelay to withdraw a broken pick asan elltirety.

8. A loom having alay. and a shuttle, picking means to lay the fillin;of said shuttle in the shed, and a broken pick extractor distinct fromand inde iendent of the la to withdraw a broken pic and means to operatesaid extractor to extraet a broken pick before the beat-up.

t). A loom having a shuttle, a lay, and

picking, means to lay the filling of a shuttle in the shed, andnieumatie means to withdraw the two ends of the broken pick in a,substantially horizontal direction from the shed before beat-up.

10. A loom having a shuttle. picking means to lay the filling of saidshuttle. in the shed of the loom. and means to withdraw t'rom the shedlaterally of the loom, before beat-up the two ends of a broken pick.

11. A loom having a shuttle, picking means to lay 'the. filling of saidshuttle in the shed of the loom, and means to withdraw from the ends ofthe. shed before beatup, the two ends of a broken pick.

12. A loom having, a shuttle, operating means to lay the filling of saidshuttle in the shed of the loom and means to withdraw before beat-up anintact broken or partial pick from within the shed, whereby said brokenpick already laid into the shed is actually withdrawn from within theshed as an entitv.

n testimony whereof I have signed my name to this Specification.

CHARLES CROMPTON.

It is hereby certified that in Letters Patent No. 1,319,759, grantedOctober 28,

1919, upon the application of Charles Crompton, of Worcester,Massachusetts,

for an improvement in Broken-Pick Extractors for Looms, an error appearsin 'the printed specification requiring correction as follows: Page 2,lines 109-110,

claim 1, for the compound word heat-up read beat-up; and that the saidLetters Patent should be read with this correction therein that the samemay couform to the record of the case in the Patent Office.

Signed and sealed this 7th day of June, A. D., 1921.

[SEAL] KARL FENNING,

Acting Commissioner of Patents.

